<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>div css 的必要性</title>
    <style type="text/css">
        .style1{
            color:greenyellow;
            font-size:30px;
        }
    </style>
</head>
<body>
<!--
在div+css中，我们常用到div span
div  存放的内容多
span  存放的内容少
-->
<span class="style1">栏目一</span><br>
<span class="style1">栏目二</span><br>
<span class="style1">栏目三</span><br>
<span class="style1">栏目四</span><br>
<span class="style1">栏目五</span><br>
</body>
</html>